Pasteurizer



Dec. W, i935. c. MORRQW 2,024,179

PASTEURIZER Original Filed June 14, 1950 7 SheetsSheet 1 Dec, H7, 1935.c, MORROW 2,024,179

PASTEURIZER Original Filed June 14, 1930 7 Sheets-Sheet '2 Lev ATTORNEYDec 17, 1935. .c. MORROW 2,024,179

PASTEURIZER- Original Filed June 14, 1950 7 Sheets-Sheet 3 INVENTOR.

ATTORNEY C. MORROW Dec, 17, 1%35.

PASTEURIZER 1930 7 Sheets-Shea? 4 Original Filed June 14 6A H N ec. 117,1935. c. MORROW 2,024,179

PASTEURIZER Original Filed June 14, 1930 7 Sheets-Sheet 5 ATTORNEY Dec.17, 1935. c. MORROW 2,024,179

PASTEURIZER Original Filed June l4, 1930 7 Sheets-Sheet 6 INVENTOR-ATTORNEY C. MORROW Dec. 17, 1935.

PASTEURIZER 7 Original Filed June 14, 1930 '7 Sheets-Sheet '7 Siw ATTORN EY Patented Dec. 17, 1935 STATES PATENT OFFIQE PASTEURIZER acorporation of Ohio Application June 14, 1930, Serial No. 461,221Renewed February 2, 1934 14 Claims.

This invention relates to the treatment of liquid, for example, thepasteurizing of milk, more particularly to apparatus having a pluralityof compartments for holding portions of the milk and means forcontrolling its supply and discharge to and from the holdingcompartments.

One object of the invention is to provide an improved apparatus of thischaracter in which the supply and discharge of milk to and from holdingcompartments are positively controlled to insure filling in sequence anddischarge in sequence.

Another object of the invention is to provide an improved apparatus ofthis character in which (a) each holding compartment is provided with avalved controlled inlet and a valved controlled outlet, to insurecomplete treatment and discharge of all the liquid supplied to eachcompartment and (b) the discharge'valves are controlled in sequence butindependently one from the other.

Another object of the invention is to provide in apparatus of thischaracter a valve mechanism for supplying liquid in sequence to theseries of compartments and separate discharge valve mechanisms for thecompartments, respectively, controlled in sequence by the driving meansfor the supply valve mechanism.

Another object of the invention is to construct a pasteurizing apparatusin which each holding compartment is provided with an improved valvearranged, when closed, to cut off the milk discharge approximately atthe level of the compartment bottom, but when open to deliver thetreated milk to a pipe which is accessible, whereby the pipe and valvemay be readily disconnected.

Another object of the invention is to construct a pasteurizing apparatusin which each holding compartment is provided with an improved valvehaving (a) a valve element arranged to make one-half revolution whenopened or closed and formed with a passage extending at an angle to theaxis of the element and opening at opposite sides thereof and (b) avalve casing formed with an upper port constituting the discharge forthe compartment and a lower port connected with a waste conduit, theinlet end of said passage registering with said upper port to effectemptying oi the compartment and registering with the lower port topermit discharge of any milk remaining in said passage or which drainsfrom the walls thereof.

Other objects of the invention will be apparent to those skilled in theart to which my invention relates from the following description takenin connection with the accompanying drawings, wherein Fig. .1 is a frontelevation of an apparatus embodying my invention, parts being brokenaway. 5

Fig. 2 is rear elevation.

Fig. 3 is section on the line 33 of Fig. 1.

Fig. 4 is a section on the line 4-4 of Fig. 1.

Fig. 5 is a fragmentary section illustrating parts shown in Fig. 4, butsomewhat enlarged.

Fig. 6 is a section on the line 66 of Fig. 5.

Fig. 7 is a section on the line 1-1 of Fig. 5.

Fig. 8 is a section on the line 8-8 of Fig. 4, somewhat enlarged.

Figs. 9, 10, 11 and 12 are sections on the lines 99, I0--I0, II II andI2-I2 of Fig. 8, respectively.

Fig. 13 is a fragmentary perspective view.

Fig. 14 is a diagram of the electrical circuits.

The apparatus herein disclosed is adapted to continuously receive milk,which has been previously heated to the desired temperature, for example142 F., to hold it in its heated condition for a predetermined period todestroy certain bacteria and to then discharge the milk for conductionto a cooler. The heater and cooler (which are not shown) may be of anydesired construction. The holder for the milk comprises a plurality ofcompartments I, 2, 3, 4 and 5 for receiving and holding the heated milk,the supply of the milk to and its discharge from each compartment beingcontrolled so that the milk therein is held for a predetermined periodof time, preferably for approximately 30 minutes at the desiredtemperature, for example, approximately 142 F., 85 as is customary inapparatus of this character. The compartments may be constructed andmounted separately as shown in Letters Patent No. 1,076,604 granted toLeroy S. Pfouts, or in a V unitary, circular series as shown in LettersPatent No. 1,300,869 granted to George B. Pitts, but preferably they arearranged in side by side relation and incorporated into a single,unitary structure having a bottom 6, front and rear walls 1, 8,respectively, end walls 9 and intermediate partitions I0, which inco-operation with the remaining walls form the compartments or holdersI, 2, 3, 4 and 5. In this preferred arrangement, the milk is supplied toeach compartment by a conduit, to which reference will later be made.Furthermore, the number of compartments may be increased or decreased,as desired, and the same may be filled and emptied in any desiredsequence.

II indicates a top wall extending between the end walls 9 and forming asupport for a cover I2. 56

By preference, the top wall H is arranged intermediate the front andrear walls I, 8, and has a cover l2 hinged along either longitudinaledge. As shown, each of the Walls, including the top wall 5 i and coversI2, embody suitable heat insulating material, shown at l3, to preventcooling of the heated milk while it is being held in each compartment.The construction of these walls to insure heat insulation may be of anydesired form, also the bottom 6 comprises upper and lower walls 6a, 6b,for a purpose which will later appear. The interior of each compartmentis suitably lined, as shown at M, to insure durability and to preventleakage, and the bottom of each compartment is inclined from the outlet(which is preferably arranged near the rear wall 8) upwardly to thefront wall and to the adjacent partitions It] to insure drainage whenthe compartment is emptying.

l6 indicates as an entirety a valve mechanism for controlling the supplyof milk to the compartments 2, 3, 4 and 5 in the desired sequence, suchsupply being continuous so long as heated milk flows from the heater andthe valve mechanism operates. The supply valve mechanism comprises aseat member I! and a valve member I8 rotatably fitted within the seatmember H. The seat member is formed in its side wall with dischargeports 19 (one for each compartment) connected by conduits la, 2a, 3a, 4aand 5a, re-

spectively, with the compartments 1, 2, 3, t, 5, these conduits leadingthrough the side walls 7 near the tops of the compartments and connectedto down pipes 20, which discharge the liquid near the bottoms 6 toprevent foaming. The valve seat member H is preferably of conical shapeand the valve element is similarly shaped and provided with a bottom i8ato form a receiving chamber for the milk. The side wall 182) of thevalve member is formed with a discharge port 2! adapted to register withthe ports I9 successively, as the valve member rotates. The side wall Haof the seat member I! extends above the valve member [8 and is shaped toreceive a plate 22, which is secured to the side wall Ila by a union 23,the plate forming a closure for the chamber within the valve member. Theplate is sealed on the upper edge of the side wall Ha, by means ofground surfaces between such edge and the plate (see Fig. 8) to preventleakage of the milk. The plate 22 is provided with a nipple or pipe end'24 to which is detachably connected a supply pipe 25 for the heatedmilk leading from the heater, this pipe being provided with a cutoff 26.The milk is continuously supplied by the pipe 25 and from the latter themilk, under control of the valve mechanism i6, flows to the compartmentssuccessively and is discharged therefrom successively, as will laterappear, into a discharge pipe 25 which conveys the milk to a cooler (notshown), so that the milk flow from the heater to the holding apparatusand from the latter to the cooler is continuous and may be continued foran indefinite period of time. The side walls ll'a, 18b, are preferablyof conical shape to permit ready removal of the valve member 18 and toprevent leakage due to wear.

The bottom Mia of the valve member i8 is provided with a diametricallyextending lug formed with a slot 2'! into which removably fits a key 28provided on a device 29 serving as a coupler between the valve member 58and a driven shaft 3E!. The shaft 30 extends through a housing 3! for acontrolling switch mechanism 32 and is mounted in hollow bosses 33, 34,provided on the upper and lower walls of a gear casing 35. The shaft 30is driven at the desired speed through a driving means, which includes asuitable reduction gearing 36, by an electric motor 37, as follows: themotor shaft is provided with a sprocket 38 for a chain 39, which drivesa sprocket ib, fixed to a shaft 4!. The shaft 4| is mounted in suitablebearings in the casing 35 and carries a worm 42 meshing with a worm gear43. The gear 43 is fixed to a countershaft 44 (also mounted in bearingsprovided on the walls of the casing 35) having keyed to it a pinion 45.The pinion 45 operates through a gear train, the gear elements of whichare loosely mounted on the shafts 44, 30, within the casing 35, to drivea gear 46 fixed to the latter shaft, whereby the speed of rotation ofthe valve member I8 is reduced so that the latter may effectregistration of the port 2| with the ports l9 at the desired intervals.

Means are provided for preventing leakage of the milk into the controlswitch casing 3 I, as well as into the gear casing 35, and permittingthe escape of any milk that may leak past the valve member it. As shownin Fig. 8, the seat member i! has an inturned flange t! having anupstanding collar 48 and a depending collar The upstanding collar 48forms a collecting channel 50 for milk if any leaks past the valvemember l8 and this milk may escape through a discharge pipe Si (seeFigs. 1 and 4). The coupling device 29 is of inverted cup-shape andremovably ts the upper end of the shaft 30, the inner wall of saiddevice and shaft having complementary portions. The upper end of thecoupling device 29 rotatably fits the depending collar 49, while itslower end is provided with a skirt 52 which surrounds a flange orannular rib 53 around the opening in the casing 3! for the shaft 39. Byconstructing the coupling device 29 to fit over and enclose the upperend of the shaft 30 and providing its lower end and wall of the casing3% with co-operating elements, danger of any milk finding its waythrough the shaft opening is entirely eliminated.

Each of the compartments l, 2, 3, is provided with a discharge valve 54,which is opened and closed by an electric motor 55, under the control ofthe switch mechanism 32, the switch mechanism serving to control themotors for the several valves so that the valve for each compartment isfirst opened and then closed in advance of the filling of thecompartment, whereby each compartment is emptied and the discharge valveclosed before filling thereof commences. ment I8 and controls oractuates the switch mechanism to open and close the circuits for themotors 55 successively it will be seen that each discharge valve 5d forthe adjacent compartment is operated in a predetermined relation to theperiod that the discharge port 2| of the supply valve 16 registers withthe port 39 for that compartment.

Each valve 54 comprises a hollow casting or member having a body portion56 and inner and outer portions 5?, 53, the inner walls of the memberbeing of conical shape to form a seat for a rotary conical valve element59. The inner portion 5'! extends between the bottom walls 6 6 and itand the body portion are incorporated in the wall 6 and rear wall 8 andcovered by the lining I l in a permanent, liquid tight manner. The innerportion 5'! is formed on its upper side with an opening 60 which formsthe discharge opening from the adjacent compartment (the lin- As theshaft 38 rotates the valve elejacent discharge pipe 25. The valveelement 59 is formed with a passage 63 extending diametrically from oneside to the other, but at an inclination to the axis of the element, sothat when the valve element is in the position shown in Figs. 4 and 5(open), the inner end of the passage t3 registers with the opening 6tand the outer end of the passage 63 registers with the opening 6i,whereby the milk in the adjacent compartment may fiow therefrom. Thevalve element 59 is held to its seat, preferably in a yielding manner,by the following means; 6 3 indicates a cap having a ground seatengaging a ground seat on the outer end of the tubular portion 58 toform a liquid tight closure for the valve casing. The outer side of thisportion 58 adjacent its end is provided with screw threads for acoupling ring 64a, the inturned flange Eel) of which engages the flange640 on the periphery of the cap 64 to secure the latter in position. 65indicates an axial opening formed in the cap 64, the opposite faces ofthe cap having hollow bosses or collars surrounding the opening 55. Theinner boss has an inturned flange forming a stop 65a, as will laterappear and the outer boss is externally threaded to removably receive acap 6573, which forms an abutment for one end of a coiled spring 650mounted in the opening, the other end of the spring bearing against acollar 66 fixed to a rod or plunger 55a projecting through the innerboss and engaging at its inner end the valve element and normallytending to force the rod toward the valve element, whereby the latter isheld yieldingly to its seat. When the cap 64 is removed, the stop 55aprevents the collar 6% and rod from being forced out of the opening 65.The cap 65b is secured to the outer boss in a liquid tight manner. Eachmotor 55 for rotating one of the valve elements is arranged when itscircuit is closed to rotate it one-half revolution at which time themotor circuit is broken to stop the valve in one position (either openas shown in full lines in Figs. 4 and 5 or closed as shown in dottedlines in the latter figure) and then upon the closing of another circuitthe motor arranged to rotate the valve a half revolution in the samedirection, at which time the circuit is again broken, stopping the valvein its other position. Accordingly it will be seen that by rotating eachvalve one half revolution in a predetermined sequence in relation to thesuccessive filling of the compartments by the supply valve mechanism It,the emptying and filling of the compartments will be effected in themanner already described.

6% indicates the shafts for rotating the valve elements 55 there beingone shaft, driven by one of the motors 55, for each element. Each shaftextends through a sleeve 65:0 mounted at its inner end in the tubularextension 51a of the valve casing portion 5 and at its outer end mountedin a collar 66 fitted and secured in an opening formed in the Wall i. Aswill be understood from Figs. i and 5, the sleeves 651: are disposedbetween the walls ed and 6b. The inner portion of each shaft M isprovided with a collar 6'! rotatably fitting the tubular extension 57aof the adjacent valve casing and its free end is provided with a, clutchor connectingv device, preferably comprising a projection 68 of squareshape in cross section fitting a correspondingly shaped recess 69 in theinner end of the valve element 59. It will be noted that the projection68 and recess 65 therefor are disposed slightly off or out of line withthe axis of the shaft 64' and valve element 59; this arrangement insuresthe replacement of the valve element, if removed, in the same positionwith respect to the angular position of the shaft that it occupiedbefore removal. It will be noted that each sleeve 653: communicates atone end with the inner end of the adjacent valve casing and leadsentirely across but below the bottom wall 6a of the compartment and isopen at its opposite end, so that any milk which may leak inwardly pastor around the valve member 59, may escape through the sleeve. The formof construction shown facilitates cleaning of the valve casing.

'50 indicates casings one for the driving means between each motor 55and the shaft 64 driven thereby, each casing having a chamber H intowhich the open end of the adjacent sleeve 65 projects, and the chamberbeing provided with an escape opening (not shown). The side walls of thechamber H are flanged and suitably secured to the wall I, to support thecasing thereon. The front wall of the chamber is formed with a bearingfor the shaft 64', which projects through the casing and also an openingformed in the cover member 73 for the casing, for a purpose to be laterset forth. Each motor 55 is mounted on a bracket i l fixed to theadjacent casing ill (see Figs. 1 and 6) and its shaft is connected to ashaft 15 mounted in the walls of the casing. The shaft 75 is providedwith a worm 16, meshing with a worm gear 11, the shaft for the latterbeing mounted in suitable bearings in the casing i9 and cover member 13and having a pinion i8 meshing with a gear 79 fixed to the shaft 64',whereby the latter is driven by the motor, in the manner later to be setforth. The free end of each shaft 65' has fixed to it an annular memberl9 of insulating material to which is fixed a disk 80 of conductingmaterial. secured the flange of a brush 8|, the purpose of which willlater appear. 82 indicates a bridge of suitable insulating materialdisposed in front of the shaft 64, and secured at its ends to the wallsof a ring 82a, the latter being bolted to the cover member E3. Thebridge 32 is provided with a binding post 82b to which a lead 83 issecured (see Fig. 14). The binding post 821) serves to secure to theinner side of the bridge a conductor 84 comprising a resilient memberbearing at its ends on the disk 80 to conduct current thereto. 85, 85,indicate a pair of substantially semi-circular switch elements mountedwithin the ring 8212, but insulated therefrom and from each other attheir ends, and adapted to be yieldingly engaged by the brush 8|, as theshaft 64 causes it to revolve. The semi-circular switch elements areprovided with binding posts 85a, 86a, respectively, the binding post 85abeing connected to a lead 8'? and the binding post 86a being connectedto a lead 83. The parts just described are enclosed in a housing 89provided on the cover member is, such housing having a cover 33 and wireconduits 91 connected to the housing. As the drive mechanisms for theshafts 54 and the switch mechanisms controlled thereby are similar, theforegoing description will apply to each such drive mechanism and switchmechanism.

It will be noted from Fig. 14 that the control switch mechanism 32.comprises two switch mech- At one side of the disk is j anisms, one ofwhich closes certain circuits for the motors 55 in a predeterminedsequence to rotate the discharge valves from closed to open position andthe other of which closes other circuits for the motors 55 in a similarsequence to rotate the discharge valves from open to closed position;also that when one switch mechanism closes one circuit such circuit iscompleted through one semi-circular contact and the disengagement of thebrush 8| from such contact breaks the circuit, whereas the engagement ofthe brush 8| with the other semi-circular contact permits the othercircuit-to be closed by the other switch mechanism according to thepredetermined sequence. Fig. 7 shows the position of the brush 8| whenthe adjacent valve 54 is closed, this being the position of thedischarge valves diagrammatically shown in Fig. 14 for the compartments2, 3, 4 and 5.

Of the switch mechanism 32: 92, 93, 94, indicate annular members, formedof insulating material surrounding the shaft 30 and preferably supportedon each other and the top of the cas-' ing 35, being rigidly clamped tosaid top by a plate 95, which is bolted thereto. The plate 95 also holdsin position on the shaft 30 a sleeve 96 of insulating material, thesleeve being suitably keyed to the shaft so as to be rotated thereby.The sleeve 96 carries a strip 91 of conducting material to which aresecured three brushes 08, 99, I 00. IOI indicates a ring formed ofconducting material suitably mounted in the annular member 92. The ringIOI is provided with a binding post I02 to which is connected a lead I03connected through a switch I04 with one supply main I05. I06, I06a,I062), I060 and W611 indicate conductor segments mounted in the ring 93and spaced from each other by spacers 93a formed integral with the ring,these segments being arranged to be successively engaged by the brush 99as the shaft 30 rotates. Each segment is provided with a binding postI01 to which one of the leads 8! is connected, the lead being connectedat its other end to one semi-circular contact 85, as already described.There being one segment for each motor 55, it will be seen that when thebrush 99 rides a segment it will complete the circuit through theadjacent lead 81 to the switch contact 85 fixed to one of the valveoperating shafts 64 and if the adjacent valve is closed (valvesdesignated 2, 3, 4 and 5 in Fig. 14 being shown closed), the circuitwill be completed through the brush 8| conductor 84, lead 83 to one sideof the adjacent motor 55 and from. the other side of the latter, by leadI08 and common return wires I09, IIO to the other supply main I05a. III,IIIa, IIIb, I and Id indicate conductor segments mounted in the ring 94and spaced from each other by spacers 94a formed integral with the ring,these segments being arranged to be successively engaged by the brushI00 as the shaft rotates. Each segment is provided with a binding post II2 to which one of the leads 88 is connected, the lead being connectedat its other end to one semi-circular contact 88. There being onesegment for each motor 55, it will be seen that when the brush I00 ridesa segment it will complete the circuit through the lead 88 to the switchcontact 86 fixed to one of the valve operating shafts 64 and if theadjacent valve is open (the valve designated I in Fig. 14 being open),the circuit will be completed through the brush 8|, conductor 84, lead83 to one side of the adjacent motor 55 and from the other side of themotor 55 through the adjacent lead I08 and common return wires I09, IIOto the supply main Ia.

Fig. 14 shows diagrammatically the two control switch mechanisms and thefive switches each including a brush 8I revolved by a discharge valveshaft. The numerals I, 2, 3, 4, 5

represent these shafts or the respective milk holding compartments. Inthis view the discharge valve for compartment I is open and thecompartment is emptying; the discharge valves for the compartments 2, 3and 4 are closed and these compartments have been filled; and thedischarge valve for compartment 5 has just closed.

Fig. 14 shows the brush 99 riding segment I06,

its engagement with the latter having completed with the movement of thebrush 99 into contact with the segment I06, the brush I00 has movedintocontact with the segment IIId and effected closing of the dischargevalve for compartment 5 so that it may be filled with heated milk.Continued rotation of the shaft 30 will simultaneously move the brushes99, I00, into contact with segments I06a, III, respectively, the effectof which will be to open the discharge valve for compartment 2 to permitemptying thereof and to close the discharge valve for compartment I;next, the brushes 99, I00, will simultaneously engage segments I06b, IIIa, respectively, the eifect of which will be to open the dischargevalve for compartment 3 to permit emptying thereof and to close thedischarge valve for compartment 2; this progressive operation of thevalves will continue so long as the shaft 30' rotates. The

valve member I8 is set or adjusted angularly of the shaft 30 so that itsport will register with the ports I9' immediately after the dischargevalves, respectively, for the compartments are closed.

It will be noted that the shaft 30 is continuously driven in onedirection, preferably by a synchronous motor. Where five compartmentsare shown, the shaft 30 is driven at a speed to rotate the valve elementI8 one revolution in approximately fifty one minutes, divided into fiveperiods of ten minutes each for filling and emptying and approximatelytwelve seconds between periods to permit the valves to operate. Forexample, in the first 10 minute period, compartment I is filling,compartment 2 is emptying and compartments 3, 4 and 5 are filled; in thesecond 10 minute period, compartment 2 is filling, compartment 3 isemptying and compartments I, 4 and 5 are filled; in the third 10 minuteperiod, compartment 3 is filling, compartment 4 is emptying andcornpartments I, 2 and 5 are filled; in the fourth 10 minute period,compartment 4 is filling, compartment 5 is emptying and compartments I,2 and 3 are filled; and in the fifth 10 minute period, compartment 5 isfilling, compartment I is emptying and compartments 2, 3 and 4 arefilled.

I prefer to provide separate circuits, whereby each motor 55 may be.operated independently of the motor 3? and control switch mechanism it,to rotate the adjacent discharge valve, either from open to closedposition or from closed to open position. For this purpose I provide alead ll adapted to be connected to the supply main M5 by throwing switchEM into the position shown in dotted lines in Fig. 14, such operationserving to cut the circuit to the control switch mechanism 5'1. The leadH4 is provided with a series of switches H5 one for each motor 55, eachswitch being movable into engagement with one terminal H6 or anotherterminal 4 i7. Each terminal H6 is connected by a lead M8 to theadjacent lead 81, so that if the adjacent discharge valve is closed, themotor circuit will be closed through contact 85, brush 8!, lead 83 toone side of the motor and from the other side of the motor through leadsI68, I89 and Hi] to the other main 15a. so that the adjacent motor 55will be set in operation to open the discharge valve, the circuit beingbroken by the brush disengaging the contact 85, as already described.Each terminal ill is connected by a lead Hi) to the adjacent lead 88, sothat if the adjacent discharge valve is open, the motor circuit will becompleted through the contact 85, brush 3!, lead 83 to one side of themotor and from the other side of the motor 55 through the leads I08, 189and MD to the supply main I 85a, so that the adjacent motor 55 will beset in operation to close the discharge valve, the circuit being brokenby the brush disengaging the contact 86, as already described.

lZil indicates a threaded opening formed in the lower side of each innervalve casing portion 5? and having a pipe section l2la threaded thereinand leading downwardly through the wall 61) (see Fig. 5). The openingI20 is positioned so that the inlet end of the discharge passageregisters therewith when the valve is rotated to closed position (thatis, 180 degrees from its full open position as shown in dotted lines inFig. 5), whereby any milk in the passage or excess thereof adhering tothe walls of the passage may drain away through the pipe mm. [2!indicates a threaded opening formed in the upper side of each outervalve casing portion 58 and having the casing of a needle valve l22threaded therein. The needle valve casing is connected with a steam pipe523 leading from a source of steam supply. The opening l2| and thedischarge port of the needle valve Q22 register with the discharge portof the valve passage E3 when in the position shown in dotted lines inFig. 5, so that the steam flowing through the valve I22 serves tosterilize as well as heat the walls of the valve passage 63. Rotation ofthe valve member 59 to its open position closes the opening l2! andhence prevents escape of the steam. In the arrangement shown, rotationof each valve member one half revolution positions its ports to permitdischarge of the milk from the adjacent compartment and shuts off thesteam supply and drain connection and rotation of the valve memberanother half revolution positions its ports to permit injection of steaminto the valve passage and drainage of any milk left in such passage.

To those skilled in the art to which my invention relates, many changesin construction and widely differing embodiments and applications of theinvention will suggest themselves without de parting from the spirit andscope thereof. My disclosures and the description herein are purelyillustrative and are not intended to be in any sense limiting.

discharge valve for each compartment, a motor for operating each saidvalve, and means operated by the driving means for said rotary member toactuate said motors in sequence.

2. In apparatus of the class described, the combination of a series ofholding compartments each having a liquid inlet connection, a source ofliquid supply, a valve mechanism between said supply means and saidliquid inlet connections and common to the latter, said mechanism ha inga rotary valve member for connecting said source of liquid supply tosaid liquid inlet connections in sequence, driving means for said rotarymember, a rotary discharge valve for each compartment, a motor foroperating each said valve, and means operated by the driving means forsaid rotary member to actuate said motors in sequence.

3. In apparatus of the class described, the combination of a series ofholding compartments, a source of liquid supply, a valve mechanism forcontrolling the supply of the liquid to said compartments in sequence,means for operating said valve mechanism, a discharge valve for eachcompartment, an electric motor for operating each discharge valve, anelectric circuit for each motor, and a switch mechanism actuated by saidoperating means for controlling said circuits to operate said motors insequence.

4. In apparatus of the class described, the combination of a series ofholding compartments, 2. source of liquid supply, a valve mechanism forcontrolling the supply of the liquid to said compartments in sequence,means for operating said valve mechanism, a discharge valve for eachcompartment, an electric motor for operating each discharge valve, anelectric circuit for each motor and a switch mechanism actuated by saidoperating means for controlling said circuits to operate said motors insequence, and a switch controlled by each discharge valve When moved toone position for stopping the operating motor for said valve.

5. In apparatus of the class described, the combination of a series ofholding compartments, a source of liquid supply, a valve mechanism forcontrolling the supply of the liquid to said compartments in sequence,means for operating said valve mechanism, a discharge valve for eachcompartment, an electric motor for operating each discharge valve, anelectric circuit for each motor and a switch mechanism actuated by saidoperating means for controlling said circuits to operate said motors insequence, and switches controlled by each discharge valve for stoppingthe operating motor for said valve at open or closed position when movedto each said position.

6. In apparatus of the class described, the

combination of a series of holding compartments, a source of liquidsupply, a valve mechanism for controlling the supply of the liquid tosaid compartments in sequence, means for operating said valve mechanism,a discharge valve for each compartment, an electric motor for operatingeach discharge valve, a pair of electric circuits for each said motor,each circuit being arranged when closed to operate the adjacent motor,and switch mechanisms each common to corresponding circuits for all saidmotors and controlled by said operating means to move said dischargevalves in sequence from one position to another position.

'7. In apparatus of the class described, the combination of a series ofholding compartments, a source of liquid supply, a valve mechanism forcontrolling the supply of the liquid to said compartments in sequence,means for operating said valve mechanism, a discharge valve for eachcompartment, an electric motor for operating each discharge valve, apair of electric circuits for each said motor, each circuit beingarranged when closed to operate the adjacent motor, switch mechanismseach common to corresponding circuits for all said motors and controlledby said operating means to move said discharge valves in sequence fromone position to another position, and limit switches for stopping eachmotor when the valve is rotated to each position.

8. In apparatus of the class described, the combination of a series ofholding compartments, a source of liquid supply, a valve mechanism forcontrolling the supply of the liquid to said compartments in sequence,means for operating said valve mechanism, a discharge valve for eachcompartment, an electric motor for operating each discharge valve, apair of electric circuits for each said motor, each circuit beingarranged when closed to operate the adjacent motor, switch mechanismseach common to corresponding circuits for all said motors and controlledby said operating means to move said discharge valves in sequence fromone position to another position, and limit switches for stopping eachmotor when the valve is rotated to each position, each said limit switchcomprising a pair of contacts and a brush, said brush being carried bythe rotary element of the adjacent valve.

9. In apparatus of the class described, the combination of a series ofholding compartments, a source of liquid supply, a valve mechanism forcontrolling the supply of the liquid to said compartments in sequence,means for operating said valve mechanism, a discharge valve for eachcompartment, an electric motor for operating each discharge valve,electric circuits for said motors, a brush secured to the rotary elementof each said discharge valve, a pair of contacts arranged to beseparately engaged by said brush as it is revolved by said element, eachmotor circuit being completed through said brush and one of saidcontacts to operate said motor to rotate the adjacent valve from oneposition to another position, and a switch mechanism actuated by saidoperating means for controlling said electric circuits to operate saidmotors in sequence.

10. In apparatus of the class described, the combination of a series ofholding compartments, a source of liquid supply, a valve mechanism forcontrolling the supply of the liquid to said compartments in sequence,means for operating said valve mechanism, a discharge valve for eachcompartment, an electric motor for operating each discharge valve,electric circuits for said motors, a brush secured to the rotary elementof each said discharge valve, a pair of contacts arranged to beseparately engaged by said brush as it is revolved by said element, eachmotor circuit being completed through said brush and one of saidcontacts to operate said motor to rotate the adjacent valve from oneposition to another position, and a switch mechanism actuated by saidoperating means for controlling said electric circuits to operate saidmotors in sequence, said contacts of each pair being alternatelyconnected in the motor circuits by said switch mechanism, whereby thedisengagement of the brush with the contact through which the circuitwas completed by said switch mechanism will stop the adjacent motor.

' 11. In apparatus of the class described, the combination of a seriesof holding compartments, a source of liquid supply, a valve mechanismfor controlling the supply of the liquid to said compartments insequence, means for operating said valve mechanism, a discharge valvefor each compartment, an electric motor for operating each dischargevalve, electric circuits for said motors, a brush operatively connectedto the rotary element of each said discharge valve, a pair of contactsarranged to be separately engaged by said brush as it is revolved-bysaid element, each motor circuit being completed through said brush andone of said contacts to operate said motor to rotate the adjacent valvefrom one position to another position, and a switch mechanism actuatedby said operating means for controlling said electric circuits tooperate said motors in sequence, said contacts of each pair beingalternately connected in the motor circuits by said switch mechanism,whereby the disengagement of the brush with the contact through whichthe circuit was completed by said switch mechanism will stop theadjacent motor, and each said contact being substantially ofsemi-circular shape, whereby the motor will be stopped when the valveelement has rotated ahalf revolution.

12. In apparatus of the class described, the combination of a series ofholding compartments, a source of liquid supply, a valve mechanism forcontrolling the supply of the liquid to said com- 40 partments insequence, means for operating said valve mechanism, a discharge valvefor each compartment, an electric motor for operating each dischargevalve, electric circuits for said motors, a series of segments eachelectrically connected to one of said motors, a brush revolved by saidoperating means and arranged to engage said segments successively tooperate said motors in a predetermined sequence, a separate series ofsegments each electrically connected to one of said motors, a brushdisposed in a predetermined angular relation to said first mentionedbrush and revolved by said operating means and arranged to engage thelast mentioned segments successively to operate said motors in apredetermined sequence, and a limit switch means for each motor arrangedto stop the latter when the adjacent discharge valve has rotated apredetermined distance.

13. In apparatus of the class described, the combination of a series ofholding compartments, a source of liquid supply, a valve mechanism forcontrolling the supply of the liquid to said compartments in sequence,means for operating said valve mechanism, a discharge valve for eachcompartment, an electric motor for operating each discharge valve,electric circuits for said motors, a series of segments eachelectrically connected to one of said motors, a brush revolved by saidoperating means and arranged to engage said segments successively tooperate said motors in a predetermined sequence, a separate series ofsegments each electrically connected to one of said motors, a brushdisposed in a predetermined angular relation to said first-mentionedbrush and revolved by said operating means and arranged to engage thelast mentioned segments successively to operate said motors in apredetermined sequence, and a switch controlled by the rotary element ofeach discharge valve to open the circuit for the motor for said valve tostop the said motor when said valve is rotated to its open position orto its closed position.

14.111 apparatus of the class described, the combination of a series ofcompartments, means for supplying liquid thereto in a predeterminedsequence, a discharge valve for each compartment, an electric motor andcircuits therefor for operating each valve, said circuits for each motor15 including a pair of separated contacts and a switch element actuatedby the adjacent valve and arranged to engage said contacts alternatelyto complete one circuit for the motor and break the other circuittherefor, and circuit closing means for closing the motor circuitsthrough corresponding contacts of said pairs of contacts in sequence toopen the said valves, separate circuit closing means for closing themotor circuits through the other contacts in a corresponding sequence toclose the said valves, and means for operating said liquid supply meansand said circuit closing means at a fixed relative speed in operativerelation to fill said compartments when the respective valves thereforare closed.

CLIFFORD MORROW.

